module.exports = {
    generateUUID: () => {
        return 'xxxxxx-xxxx-4x-yx-xxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random() * 16 | 0,
                v = c === 'x' ? r : (r & 0x3 | 0x8);
            return v.toString(16);
        });
    }
}